Thats ok, but you need a little bit more work on the shading. I usually spend around an hour to an hour and a half on my drawing. You might want to put in some crosshatching and shade where you think it should be shaded. Put some more detail on the hands too, but other than that, looks great. Nice job!

(your problem is that you're spending too much time drawing EXACTLY what you see, you need to put some of your own style into it. Make the shading flow, don't draw the shading, mix it in. You know what I mean?)